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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Water and Fluoride Content of Anodizing Electrolyte on Morphology and Corrosion Behavior of ZrO2-Nanotubes Developed on Zirconium Implant
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Effect of Water and Fluoride Content of Anodizing Electrolyte on Morphology and Corrosion Behavior of ZrO2-Nanotubes Developed on Zirconium Implant

机译：阳极氧化电解液中水和氟的含量对锆植入物上ZrO2-纳米管形貌和腐蚀行为的影响

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摘要

Zirconium oxide nanotubes with inner diameter of 30-80 nm were fabricated by anodizing method in glycerol and DMF solution as organic electrolytes containing small amount of ammonium fluoride and water at room temperature. We investigated the effect of water content (1, 3, 5 wt.%) and ammonium fluoride concentration (0.5, 1, 2 wt.%) on the morphology, as well as the zirconia nanotubes diameter and their corrosion resistance in the artificial saliva solution as a biological medium at 37 +/- A 1 A degrees C. Nanotubes morphology and structure were examined by field emission scanning electron microscopy (FE-SEM), energy dispersive x-ray and x-ray diffraction spectroscopy. The FE-SEM results show that the inner diameter of nanotubes rises with increasing the concentration of ammonium fluoride and water content in anodizing electrolyte solutions. The electrochemical impedance spectroscopy and Tafel polarization tests were used to study the corrosion behavior of zirconia NTs electrodes. The results show that the best concentration of ammonium fluoride and water content in anodizing electrolyte, which the samples demonstrated maximum corrosion resistance and regular structure, were at 1 wt.% H2O and 2 wt.% NH4F.
机译：在室温下，在甘油和DMF溶液中，通过阳极氧化法制备了内径为30-80 nm的氧化锆纳米管，作为有机电解质，其中含有少量的氟化铵和水。我们研究了含水量（1、3、5 wt。％）和氟化铵浓度（0.5、1、2 wt。％）对形态的影响，以及氧化锆纳米管的直径及其在人工唾液中的耐腐蚀性溶液在37 +/- A 1 A的温度下作为生物介质。通过场发射扫描电子显微镜（FE-SEM），能量色散X射线和X射线衍射光谱检查了纳米管的形态和结构。 FE-SEM结果表明，纳米管的内径随着阳极氧化电解液中氟化铵浓度和水含量的增加而增大。用电化学阻抗谱和Tafel极化试验研究了氧化锆NTs电极的腐蚀行为。结果表明，阳极氧化电解液中氟化铵和水的最佳浓度（样品显示出最大的耐腐蚀性和规则结构）在1 wt。％H2O和2 wt。％NH4F下。

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